Taking Care Of The Guide Bar; Replacing The Air Filter - Stihl HT 105 Instruction Manual

Taking Care of the Guide Bar

1
Turn the bar over – every time you
N
sharpen the chain and every time
you replace the chain – this helps
avoid one-sided wear, especially at
the nose and underside of the bar
Regularly clean the oil inlet hole (1),
N
the oilway (2) and the bar
groove (3)
Measure the groove depth – with the
N
scale on the filing gauge (special
accessory) – in the area used most
for cutting
Chain type Chain pitch Minimum
groove depth
Picco 3/8" P 5.0 mm
Picco 1/4" P 4.0 mm
If groove depth is less than specified:
Replace the guide bar
N
HT 105, HT 134, HT 135
The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the bar rails.
2
3

Replacing the Air Filter

Filters have an average life of more than
a year. Do not remove the filter cover or
replace the air filter as long as there is no
noticeable loss of power.
If there is a noticeable loss of engine
power
3
4
Turn the choke knob to g.
N
Loosen the screws (1).
N
Remove the filter cover (2).
N
Clean away loose dirt from around
N
the filter.
Remove the filter element (3).
N
Replace dirty or damaged filter
N
element (3).
Replace any damaged parts.
N
Installing the Filter Element
Install the filter element (3) in the
N
filter housing and fit the cover.
Insert the screws (1) and tighten
N
them down firmly.
English
2
1
1
27